A man suffering from prosopagnosia meets a woman who is unforgettable. Lee Yoo Chan is the founder and CEO of the IT company "Next In", which has become the most desirable places to work. He suffers from prosopagnosia, a condition where he can’t recognize faces, and this makes him very guarded and mistrustful of most people. Kim Bo Ra is the pride of her hometown on Jeju Island who came to Seoul to attend college. With her imminent graduation, her dream is to work for Next In. When Bo Ra meets Yoo Chan, will both their lives change in unexpected ways?